Butter tub



Patented Feb. 28,` 1933y PATENT )OFFICE CHESTEE m. MAcCIIEsNEzOE CHICAGO, ILLINOIS, AssIGNon To ACME STEEL COMIANY,`

OE CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS f BUTTER] `TUB 1 kApplication led April 1,` 1929'. Serial No. 351,478.

-This invention relates to improvements in butter tubs or other containers and its ypurl Y pose is to pro-vide an improved hoop construction whereby the parts of the tu'bare reen-k forced and maintained in assembled relation.

The principal object of the invention isto provide an improved butter tub comprising one or more improved hoops byfwhioh the ,o staves of the tub are maintained in assembled relation with respect to the :bottom wall without the usev of nails or the like orsecuring thehoops' in position on the tub. A further object ofthe inventionis to provide an ims proved bottom hoop for a butter tub or other container which will retain itself in place without `nailing and which will permit aplurality of tubs to be nestedone within the othery without `danger o-fthe hoops being withdrawn from the tubs when the tubs/are pulled apart. Still another object of they invention is to provide a butter tub having a bottom hoop provided withY anlinwardly di` rected bead 'engaginga recess in the tub in combination with one orV more upperhoops having outwardly directedfbeads adapted to engage the wall of an outer tub when a plurality of tubs are nested one within the other.

Another object of the invention is toprovide a tub having a bottom hoopprovided with a s. to prevent contamination of 'the butter or other contents of the tub, it is important to avoiddriving nails through',V the relatively thin staves of which the walls ofthe tubs arev formed. The upwardly'extending `and out-c kwardly flared staves are engaged Iadjacent their lower ends bythe bottom wallof the tub and these parts are ordinarilyV secured inassembled relation by means vrofa plurality of surrounding hoops which zare preferably formed of sheet metal. In order to avoid the s `through 'one side portlon of the tub'l'llusdriving of nails -into .the stavesfof the tub,y

the sheet metal hoops are commonly placed y thereon with a drivel fit andv this vfrictional engagement is depended upon tojprevent re" movalof the hoops.` The uppermost hoops which surround the tub do not require tol bek placed in vany denitelocation and may be driven upwardly on thefliaring tub until they have such a tight engagement therewith that they cannot `readily be. removed, butthe o lower hoop must surround the lower end'seof the staves ,to maintain themin tight engagement with the lower wall of the tub and thus the lower'hoop must occupy a moreor less definite position which precludes its being driven onk until av predetermined frictional engagement is obtained. These limitations sometimes givey rise to difficulties when a number of tubs are nested one within the other `for shipment whichis the preferable arrangement in order tol save shipping space within railway cars7 because, when the tubs are subsequentlyseparated from each other,

, there is a tendency for the lower hoops to be pulled oil' of `thevbottoms ofthe tubs. The f fact that there may be some variation in the V.circumference of the tubs and a variation in the circumference of the hoopsincreases this dangerfbecause of the fact that all of the hoops must occupy substantially the same relative position with respect to the bottoms of the tubs. These diiiculties are overcome 1n the present invention by providinga bottom hoop whichis automatically retained in place jonV the tub without nailingand which 1s employed injcombination with other hoops of-such' construction that the bottom'hoop `does not come into contact with adjacent tubs f.

when theptub's are nested onewithin the other. Other features andadvantagesof the *Inthe drawing, Figure 1 shows alperspective view of a butter'tubequipped with the improved hoop of the present invention;

,'*Fig2`shows `a partial vertical section trated in Fig.l taken onjthe liner'2-2,of Figpl;

illustrated in Fig. 1,?showing the means for Fig. Sshows a partialside elevation,' on' an 1 enlarged scale, of a portion of the lower hoop y Vinvention' willfappear more fully hereinafter.vr v 85, n

securing the overlapping ends of the hoops together; and

Fig. 4 shows a partial vertical section through a plurality of butter tubs equipped with the hoops in the present invention showing their arrangement when in nested relation to each other.

As illustrated in the drawing, the improved butter tub comprises a plurality of vertical staves 11, formed of wood, which are arranged edge to edge to form anupwardly i of the proper form to provide an outwardly rolled cylindrical bead 14a along the lower Si@ edge of each hoop and to provide an outwardly bowed intervening part 1'4"` which terminates adjacentv itsupper edge inV an outwardly directed annular lip'14c. The` ends of the hoop which are thus formed are secured together, 31h preferably by spot-welding, and the hoops are driven onto the tubs from the bottom with the lips 14c directed upwardly. The hoops may have an initial upward fiare, but even when they are of cylindrical form, the upper W edges, thereof, which are not reinforced by a bead, are adapted to stretch as the hoop is driven upwardly over the tub `so that the hoops 14 are formed to the flare of the tub and are adapted to exert a tight frictional 'm grip thereon when they are driven to their extreme position. The beads 14-EL then project outwardly beyond the other portionsof the hoops 14 so that when a plurality of tubs are nested one within the other, as shown l 1-5` in Fig. 4,-the beads 14 onan inner tub are1 the only parts of that tub which engage ,the

wall of the next adjacent outer tub. Y l

Around the lower annular edge ofthe tub 10, there is located a reenforcing hoop 15 along its lower edge an inwardly directed cylindrical bead 15L whichoccupies a recess 16 formed by turning or otherwise cutting offthe lower annular edge of the tub, after the s'taves have been assembled on the bottom wall 12, to form an inclined annular beveled edge 17. The body portion 15b of the hoop to occupy a recess 18 formed in the annular,`

wall of the tub, Vpreferably at the time' of forming the depression 16. "The hoop 15 is formed preferably of sheet metal and having lformed fromsheet metalr'by passing it through suitable dies to impart the inwardly directed bead formation 15a to the lower edge thereof and to form thehalf bead or projection 15c along the upper edge thereof. The hoop15 is pressed preferably cylindrical in form so that somestretching thereof is required in order to .cause it to conform to the taper of the tub when it is driven thereon. The overlapping ends of the bead 15 are preferably secured together as shown in Fig. 3 by means of spot-welding. For this purpose, the bead 15a is preferably cut away from each end of the band for a short distance, leaving two projecting tongues 19 extending beyond the ends 2O of the bead which then substantially abut against each other. The overlapping end 19 on the inner side of the hoop 15 is preferably fitted within the end portion ofthe bead 15a at the other endv of the-hoop and the overlapping ends are then secured together by spot-welding as `shown at 21. These spot-welds 21 are preferably arranged in two divergent series extending on opposite sides of a central spot-weld 21" which is located opposite the abutting ends 2O so that there is no danger-of weakening the metal adjacent to the point where the abutting ends 20 of the beads are-located. The half beads 15c lit one within the other and two of the welds 21 are preferably located in thereby maintaining the hoop in positive engagement with the staves 11 of the tub.

ln Fig. 4 of the drawing there is illustrated the relative arrangement of a plurality of tubs nested one within the other. lt will be seen that the outerI walls of the tubs are spaced apart by the upper hoops 14 whichr are preferably so constructed that the beads 14 thereof only engage the inner surfaces Vof the staves of the next adjacent outer tub. inasmuch-as the beads 15a on the bottom hoop 15 of each tub are directed inwardly into the recesses ,16, the hoops 15 are maintained entirely out of engagement with the stavesof the interfitting tubs so that when the :tubs are pulled apart there is no danger of removing the lower hoops of any of the tubs and, due to the fact that the upper hoops 14 may be driven on to secure any desired tightness of fit, these hoops are not loosened or removed by the upward movement of any tub when the tubs are disassembled from nested relation. If, due to distortion of'any of the tubs, the lower hoopv of any tub engages the wall of the next adjacent outer tub, the interlocking engagement of the annular vprojection 15c with the depression 18 will prevent the bottom tub'from being removed -when the tubs are pulled apart.

Although one form of the inventionhas kbeen shown and described by wayof illustrawardly` extending annular kbead formed thereon, lsaid band having a drive fit on the wall of said container.

2. The combination with a container having an annular recess around its lower edge, of an annular reenforcing band extending around such container and having an inwardly extending bead 'along its lower edge engaging said recess. Y

3. The combination with a container having an annular recess aroundits lower edge and anannular groove spaced above its llower edge, of a reenforcingiband haviner aninwardly directed part engaging said groove and another inwardly extending part engaging said recess. n

4. The combination with a container formed of a plurality of upwardlyflaring non-metallic staves and having a non-metallic bottom wall, of Va metallic reenforcing band extending around said container outwardly from said bottom wall, 'said container resting on the lower ends of said staves having a groove therein on its outer side adjacent said bottom wall, and a projection formed on the said band engaging said groove, said container having an annular beveled recess around its outer lower edge, and a bead formed on said band and extending inwardly therefrom to engage said recess.r

5. The combination' with a non-metallic container having an upwardly and outwardly ilaredannular wall, of `a plurality of metal-y e and another metallic band extending around i container having an upwardly and outwardly flared'annular wall, of a--plu'rality of me-k said container adjacent its lower edge and having `an inwardly directed bead, engaging said recess. j l j 6. The combination with a non-metallic tallic reenforcingjfbands extending around said outer wall above its lower edge, each of l said bands having an `,outwardlyextending annular bead formed thereon, said container ha-vlng an annularrecess around its lower edge, and another metallic band extendingY around said container adjacent its lower edgey and `having an inwardly directed bead engaging said recess, said container having an annular groove therein Vadjacent the up-per edge of said last namedband, and an inwardly directed annular half-bead formed on said last named band and engaging said groove.

7 The combination with a container having an annular upwardly flared non-metallic wall provided a short distance above the lower end thereof with an annular groove, said container having its lower edge beveled downwardly and inwardly from said outer l wall to form a recess, and an annular metallic'band driven upwardly onto the lower end of `said annular wall,said band having an "inwardly projectingannular part around its upper edge sprung into engagement withsaid annular groove, said band being `provided around its lower edge with an annular in-v wardly extending beadengaging said recess.

8. The method of forming a container.y which consists in providing a vessel having yan annular upwardly flared wall of non-metallic material, providing an annular groove in said annular wall-a short distance above the lower end thereof, providing an annular recess at the lower edge of said annular wall, and then driving onto saidV annular wall from the lower endk thereof an annular metallic gagement with said annular groove and said annular bead engages said annularrecess.r 9. In combination, a plurality of containers having upwardly' flared annular walls nested one within the other, said containers being provided around intermediate portionsk thereof -withannular metallic bands providf Ved with Voutwardly Vextending `annular beads each yof whichengages the inner surface of the annular wall ofthe next adjacent. con.r

-tainer in saidnested relationeach of said containers beingk provided adjacent its lower end with an annular groove and with an anf Vtactwith the inner surfaces of the walls 0fk the respective next Ladj acent container..

i In testimony whereof,'I have ksubscribed myname.

' CHEs'rER M.k MACCHESNEY. 

